/Engine/Source/Runtime/UMG/Public/Blueprint/WidgetLayoutLibrary.h
Gets the slot object on the child widget as a Scroll Box Slot, allowing you to manipulate its information.
static [UScrollBoxSlot](API\Runtime\UMG\Components\UScrollBoxSlot) * SlotAsScrollBoxSlot ( [UWidget](API\Runtime\UMG\Components\UWidget) * Widget )